21JZ6
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BrandGeneral Electric
ClassCompactron Beam Pentode
BaseCompactron
Filament21V @ 450mA
Construction
Primary TypeBeam Power Pentode
EnvelopeT-12 Glass
Base MaterialButton 12-Pin
SectionsSingle
Filament / Heater
Heater NotesHeater warm-up time: 11 seconds
Absolute Maximum Ratings
Plate Voltage770 V
Plate Dissipation38 W
Grid 2 Voltage220 V
Grid 1 Voltage-330 V
Cathode Current230 mA
H-C Voltage200 V
Audio Performance
Key Features
- Compactron design
- Separate beam plate connection to minimize snivets
- High peak pulse plate voltage capability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics (Condition 1) | 50V | - | - | - | 450mA |
| Average Characteristics (Condition 2) | 130V | 9000 | 9900 | 4.8 | 46mA |
Application Notes
Designed for horizontal-deflection amplifier applications in television receivers.
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